Election signs have been causing controversy across the state on polling day with an Electoral Commission of Queensland spokesman saying officers had received "a large number of complaints".

Electoral material from both sides of politics has caused controversy in the lead-up to the day.

The LNP sought an injunction over an official-looking Labor sign urging voters to number every box, which was subsequently thrown out. The party's move to have activist group GetUp's how-to-vote cards blocked met a similar fate.

The LNP has been displaying signs with a similar theme at booths on polling day.

ECQ spokesman Carrick Brough said signage complaints were an ongoing issue on election day but couldn't say whether there were more or less complaints this year.

"We have received a large number of complaints about signage at polling booths around the state," he said.

"I'm unable to put a figure on it because we get it by phone, we get it by email, we get it at a local level and we get it at the commission level.

"In a number of cases we have given directions for these to be taken down because any election material without authorisation is not permitted to be displayed during the election period."

But he said electoral officers had not asked any volunteers to remove signs warning a hung parliament was chaos, or those urging electors to "Just Vote 1" or "Remember To Number Every Square".

"The commission has a great duty to remain impartial in these things and to not allow itself to be used as a political tool," Mr Brough said.

"So it's only in very clear cases that we will intervene on behalf of the electors of Queensland. "Groups want to get us involved. They want to dob in each other but we need to stay out of it as best we can."

All election signs must be authorised before they can be displayed. Mr Brough said the majority of complaints related to signs which didn't display proper authorisation.